site.btaLowest Temperatures in May to Stand at 3C to 8C, Highest at 28 C to 33 C

The lowest temperatures in May in Bulgaria will be between 3C and 8C, and the highest - between 28C and 33C, Mariyana Popova from the National Institute of Meteorology and Hydrology (NIMH), told BTA on Monday.

This year in May, the average monthly temperature is expected to be around and above the norm, which in most of the country is between 16C and 19C; 15-16C along the Black Sea and in the high fields; between 2-5C (in the highest parts) and 12-14C in the mountains.

In most of the country, the average monthly amount of precipitation will be around the norm. The forecast monthly rate of precipitation will be between 50 and 70 liters per square metre, between 30 and 50 liters per square metre along the Black Sea and the Struma river valley, and between 70 to 140 liters per square metre in the mountains and sub-mountain areas.

During the first ten days of May, temperatures will be close to normal. It will be relatively warmer at the beginning of the ten-day period, and relatively cooler - in the second half of the period. The weather will be unstable on most days with an increased probability of precipitation and thunder, mainly in the afternoon hours, at first in Western and Central Bulgaria, and by May 6-7 in Eastern Bulgaria as well.

After a relative stabilization of the atmosphere at the end of the first and the beginning of the second ten-day period, from May 12 to 16 the air mass will again be unstable, with an increased probability of short-term rainfall and thunderstorms, especially in Southern and Eastern Bulgaria.

During the first half of the third ten-day period, precipitation will be less and and temperatures will gradually rise and be higher than usual, said NIMH.